The Credit Card Identification Code, or Card Code, is a 3 or 4 digit Security code that is printed on the back of credit cards in reverse italics in the card signature panel (or on the front for American Express cards).
Mount Vernon, Illinois. Mount Vernon known as The King City is a city in and the county seat of Jefferson County, Illinois, United States. The population was 15,277 at the 2010 census. Mount Vernon is the principal city of the Mount Vernon Micropolitan Statistical Area, which includes all of Jefferson and Hamilton counties.
Explore Vernon County (Click on picture) Vernon County, created in 1851 (originally as Bad Axe County) from Richland and Crawford Counties, is named for Mount Vernon, George Washington's home. Located in southwest Wisconsin, the county seat is Viroqua.